using System;

class Program
{
    static void Main(string[] args)
    {
        var input = Console.ReadLine().Split(' ');
        var total = 0;
        int v = 0;
        foreach (var val in input)
        {
            v = int.Parse(val);
            if (v % 3 == 0 && v % 5 == 0) total += "FizzBuzz".Length;
            else if (v % 3 == 0 && v % 5 != 0) total += "Fizz".Length;
            else if (v % 5 == 0 && v % 3 != 0) total += "Buzz".Length;
            else total += v.ToString().Length;
        }
        Console.WriteLine(total);
     }
}